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Updated: Apr 25, 2026

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Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
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プレアデス距離の論争に関するVLBIの決議
Carl Melis1, Mark J Reid2, Amy J Mioduszewski3
1University of California, San Diego, Center for Astrophysics and Space Sciences, 9500 Gilman Drive, La Jolla, CA 92093-0424, USA. cmelis@ucsd.edu.
まとめ
新しいラジオ天文学の測定により,プレアデス星座の距離に関する論争が解決されました. この研究は,プレアデス星団までの最も正確な距離を提供し,若い星の天体物理学モデルをサポートします.
科学分野:
- 天文学と天体物理学について
- 恒星物理学 恒星物理学
- アストロメトリー・アストロメトリー
背景:
- プレアデス星座の開いた星団は,若い恒星を理解する上で極めて重要です.
- ヒッパーコス (120.2 pc) と他の測定 (133.5 pc) の間には,重要な"プレアデス距離論争"が存在する.
研究 の 目的:
- プレアデス距離の論争を解決するために.
- プレアデス星団への正確な距離測定を提供するために.
主な方法:
- 絶対トライゴノメトリックパララックス測定のために,非常に長いベースラインの無線干渉計 (VLBI) を利用しました.
- 距離の決定において高い精度と精度を達成しました.
主要な成果:
- プレアデス星団の距離を136.2 ± 1.2パーセック (pc) としました.
- この結果は,Hipparcosミッションの距離120.2 pcと相容れない.
- この新しい測定は,これまでで最も正確で正確なものです.
結論:
- VLBIから派生した距離は,プレアデス距離の論争を解決します.
- この発見は,プレアデス時代の恒星に関する既存の天体物理学モデルを裏付け,固めるものである.
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